Theoretical analysis of wave and structure interaction around a composite-type coastal structure - a case study of a seawall and detached breakwaters

This study presents a theoretical method for analyzing flow fields around a composite-type coastal structure. A dividing region method, extended from previous work is adopted, and the case composed of a seawall and detached breakwaters is the focus for a fundamental stage of this topic. Laboratory experiments are also conducted to examine the validity of this method. Theoretical results of water surface elevation around the composite-type structure agree well with the experimental results and the validity of this method is confirmed.